Using a large or small book to write a novel depended on one's personal preferences and needs. The larger book was usually larger and thicker than the smaller one, allowing it to contain more content, including more chapters and more story details. The advantage of a large book was that it was more durable, heavier, more stable, and could better accommodate a large amount of text. Big books were suitable for writing long, monumental works, epic novels, and stories that required a lot of detail. Small books are usually thinner, lighter, and more convenient to carry than large books. They are suitable for writing short stories, light novels, science fiction, and so on. The advantage of a small notebook was that it was more portable, easier to carry around, and could be completed faster. Regardless of whether it was a large or small book, he should choose a book that suited his needs. In the process of writing, you can use different books in turn to better adjust the writing style and content.